Design of geotechnical engineering problems that involve ujU,O%.n
dynamic loading of soils and soil–structure interaction Pq;OShU_
systems requires the determination of two important m=dNJF
parameters, the shear modulus and the damping Ar`+x5
of the soils. The recent developments in the numerical ;8s L
analyses for the nonlinear dynamic responses of grounds De?VZ2o9"
due to strong earthquake motions have increased the H+v&4} f
demand for the dynamic soil properties corresponding D)d ]o&
to large strain level also. Further, the most common cause k^J8 p#`6
of ground failure during earthquakes is the liquefaction aZFpt/.d
phenomenon which has produced severe damage all ^q:-ZgM>
over the world. This paper summarizes the methods of a>wCBkD
determining the dynamic properties as well as potential "4N&T #
for liquefaction of soils. Parameters affecting the dynamic mMAN* }`O
properties and liquefaction have been brought out. Z>hTL_|]a{
A simple procedure of obtaining the dynamic properties _olQ;{ U:
of layered ground has been highlighted. Results of a m2(>K Mbi
series of cyclic triaxial tests on liquefiable sands collected &@0~]\,D7
from the sites close to the Sabarmati river belt have been iQ'*QbP'Z
presented.
